Record Unique Visit

[fanalis93]

I am trying to record only unique IP visit.
For example, if IP-1 visits a post three or whatever times, it should record only once for that IP and specific post. If the IP visits another post, then record once for that post.
I noticed package stores visitor cookie key each time it visits and they are different everytime so it's confusing how to record uniquely.

I couldn't find any method for that? How should I approach this?